Transmission

1. • 公称直径：430mm，是国内大马力重卡最主流的离合器规格
   • 结构类型：单片、膜片弹簧式离合器压盘，分为拉式 / 推式两种结构（图中为拉式结构，适配大马力车型）
   • 扭矩容量：通常可匹配 2200-3200N·m 额定扭矩，适配 400-600 马力发动机
   • 安装止口：常见为 475mm，适配国内主流重卡飞轮壳
2. 关键结构解析
   • 膜片弹簧：中心的放射状弹性元件，负责为离合器片提供均匀、稳定的压紧力，相比传统螺旋弹簧，具有结构紧凑、分离力小、磨损补偿能力强的优势
   • 压盘本体：高耐热铸铁材质，承受离合器片摩擦产生的高温，具备良好的刚性与热稳定性
   • 分离指 / 拉环：图中边缘的黑色固定件，是分离轴承的作用点，拉式结构通过拉动分离环实现离合器分离，适合大扭矩工况
   • 定位孔：外圈的螺栓孔用于将压盘固定在发动机飞轮上，内圈的导向结构用于与分离轴承配合

✨ 核心优势

• 高耐热抗变形：采用球墨铸铁材质与优化的散热设计，可承受重载起步、频繁半联动产生的高温，避免压盘工作面翘曲变形
• 稳定的压紧力：膜片弹簧的非线性特性，能在离合器片磨损过程中保持压紧力稳定，减少打滑风险
• 适配重载工况：可与你之前展示的陶瓷离合器片完美匹配，满足矿用自卸车、干线物流重卡的大扭矩、频繁起步需求
• 标准化设计：与法士特变速箱、潍柴 / 玉柴 / 康明斯等主流发动机型号适配性强，通用性高

🚚 适配场景

• 宽体矿用自卸车：同力、徐工、临工等品牌的矿用自卸车
• 干线物流重卡：东风天龙、陕汽德龙、重汽豪沃、解放 J6P/J7 等 400 马力以上牵引车
• 工程车辆：重载自卸车、混凝土搅拌车、港口牵引车等频繁起步工况

⚠️ 安装与维护要点

• 必须与对应规格的离合器从动盘、分离轴承、飞轮匹配安装，避免因止口尺寸、工作面内径不匹配导致起步发抖或打滑
• 安装前需检查飞轮工作面平整度，必要时进行车削修复，否则新压盘也会出现偏磨
• 更换压盘时建议同时更换分离轴承和导向套，避免因卡滞导致压盘分离指磨损
• This is a Φ430mm diaphragm spring clutch pressure plate assembly for commercial vehicles, a key component matched with the ceramic clutch disc you showed earlier, and also a core part of the transmission system for heavy-duty vehicles such as heavy trucks and mining dump trucks.
  1. Basic Parameters
     • Nominal diameter: 430mm, the most mainstream clutch specification for high-horsepower heavy trucks in China
     • Structure type: Single-plate diaphragm spring clutch pressure plate, available in pull-type/push-type designs (the one in the picture is pull-type, suitable for high-horsepower models)
     • Torque capacity: Typically matches a rated torque of 2200-3200N·m, compatible with 400-600 horsepower engines
     • Mounting pilot diameter: Commonly 475mm, compatible with flywheel housings of mainstream heavy trucks in China
  2. Key Structure Analysis
     • Diaphragm spring: The radial elastic element at the center, responsible for providing uniform and stable clamping force to the clutch disc. Compared with traditional coil springs, it has the advantages of compact structure, low release force, and strong wear compensation capability.
     • Pressure plate body: Made of high heat-resistant cast iron, it withstands high temperatures generated by friction with the clutch disc, with excellent rigidity and thermal stability.
     • Release fingers/pull ring: The black fasteners at the edge in the picture are the acting points of the release bearing. The pull-type structure achieves clutch disengagement by pulling the release ring, which is suitable for high-torque conditions.
     • Mounting holes: The outer bolt holes are used to fix the pressure plate to the engine flywheel, and the inner guide structure is used to cooperate with the release bearing.
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  • 高耐热抗变形：采用球墨铸铁材质与优化的散热设计，可承受重载起步、频繁半联动产生的高温，避免压盘工作面翘曲变形
  • 稳定的压紧力：膜片弹簧的非线性特性，能在离合器片磨损过程中保持压紧力稳定，减少打滑风险
  • 适配重载工况：可与你之前展示的陶瓷离合器片完美匹配，满足矿用自卸车、干线物流重卡的大扭矩、频繁起步需求
  • 标准化设计：与法士特变速箱、潍柴 / 玉柴 / 康明斯等主流发动机型号适配性强，通用性高
  • High heat resistance and anti-deformation: Made of ductile iron with optimized heat dissipation design, it can withstand high temperatures generated by heavy-load starting and frequent half-clutch operation, preventing warping and deformation of the pressure plate working surface.
  • Stable clamping force: The non-linear characteristics of the diaphragm spring can maintain stable clamping force during the wear process of the clutch disc, reducing the risk of slippage.
  • Adaptable to heavy-duty conditions: Perfectly matches the ceramic clutch disc you showed earlier, meeting the high-torque and frequent starting requirements of mining dump trucks and trunk logistics heavy trucks.
  • Standardized design: High compatibility with mainstream engine models such as Fast transmissions, Weichai/Yuchai/Cummins, with strong versa

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